UK Manufacturers

Abstract Data:
http://www.abstractdata.biz/

Analogue Solutions:
http://www.analoguesolutions.com/

Analogue Systems:
http://www.analoguesystems.co.uk/

Bugbrand:
http://www.bugbrand.co.uk/

Frequency Central:
http://www.frequencycentral.co.uk/

Future Sound Systems:
http://www.futuresoundsystems.co.uk

Hinton Instruments:
http://www.hinton-instruments.co.uk/

MacBeth Studio Systems:
http://www.macbethstudiosystems.com/

Oakley:
http://www.krisp1.com/3u/3u.htm